Toshiba 40WH08B, Service Manual

Page: 18 / 98

– 18 –
GENERAL ADJUSTMENTS
Model Metodo di regolazione
[1] 40WH08 series (1)Receive internal crosshatch signals, use the lens cap, and concentrate on the single color of G.
(2)Watch the horizon of both the left and right ends on the horizontal axis of the screen, adjust the lens focus of G to
the very best, and check that the left-and-right focus balance is appropriate.
(Check left-and right balance of G lens focus)
y
Use the left (or right) end crosshatch and make the best adjustment on the G’s lens focus.
x
Check the right (or left) end focus.
(3)If the left and right lens focus is not properly balanced (tendency for flare), divide and adjust it to the middle grade.
(4)Check on the periphery, and make certain that the focus grade lies within a tolerable level (including flare).
Focus adjustment method (2/2)
GREEN lens focus adjustment
Adjusting points Screen
Left end Right end
ø 100 mm ø 100 mm
(Point of observation)
Inside the circle of 100mm that is in contact with
left and right bezels.